Sam needs to take measurements for his study table. What is the best unit of measurement for him to use?
What is the need of standard unit for measurements? [2 MARKS]
Question 15
Four children measure the length of a table which was about 2 m. Each of them used different ways to measure it. (i) Sam measured it with a half metre long thread. (ii) Gurmeet measured it with a 15 cm scale from her geometry box. (iii) Reena measured it using her hand span. (iv) Salim measured it using a 5 m long measuring tape. Which one of them would get the most accurate length? Give reason for your answer.